小题１则，不喜勿进 ;)

two farmers were going to have a lunch together when they took a lunch break.
farmer one brought 3 pieces of bread, farmer two brought 5 pieces of bread
at the same time, there is a hungrey business man came
he needs some bread, so farmers decided to share their bread with him
since 8 can not be divided by 3
so they cut each bread into 3 pieces
after they equally shared their bread
the business man gave them 8 gold coins for payment
how should two farmers take these coins fairly?